1 thought on “What material is the old gold sold online-how much is the gold content of Lao Jin?”

  1. Gold is a good investment project for men, and it is valuable jewelry for women. There are many types of gold according to the different gold content. The higher the gold content, the more expensive it is. We can often see a kind of gold called Lao Jin, which is cheaper for this kind of selling, because the gold content in it is relatively low, but it cannot be said that Lao Jin is not worth it at all. Essence
    1. What material is the old gold sold online
    Old gold is the gold refined by the previous method. Due to the technical restrictions, the gold content of the old gold is low, and the metal impurities such as silver, the price, the price It is lower than gold. In nature, gold exists in a free state. With the current technology, gold cannot be synthesized naturally. According to the source of gold and the content of refined, gold is divided into gold and cooked gold. Lao Jin is refined with gold, but the refining technology is not good, the color is not golden enough, and the brightness is not high.
    2, how much is the gold content of the old gold
    Generally speaking, the gold content of the old gold is about 50%, and the gold content of gold is as high as 99.9%. Therefore, compared with gold, the price of Lao Jin is not very high, and the price of Lao Gold on the Internet is at least 30 yuan per gram than the price of gold. However, the price of Lao Jin is not cheap compared to other metals. Although its gold content is not high, there is still a market for old gold jewelry.
    3, old gold's gold color fading
    Plash gold will fade for a long time. Because of the problem of purifying technology, Lao Jin's gold content is not high, and there are many impurities. After a long time, the color will fade. Lao Jin has high ductility and toughness, high hardness, but the chemical properties are relatively unstable. It is best to avoid contact with shampoo, alcohol, vinegar, and other items, otherwise it will affect the color of the surface.

Leave a Comment